exm030403.m

matlab电子书籍

a=[]
b=ones(2,0),c=zeros(2,0),d=eye(2,0)
f=rand(2,3,0,4) 

class(a)			
isnumeric(a)		
isempty(a)

which a 			 
ndims(a)			 
size(a)	

A=reshape(-4:5,2,5)

A(:,[2,4])=[]